CN208986075U - A kind of painting cloth diaphragm for nickelic ternary power battery - Google Patents
A kind of painting cloth diaphragm for nickelic ternary power battery Download PDFInfo
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- CN208986075U CN208986075U CN201822141948.5U CN201822141948U CN208986075U CN 208986075 U CN208986075 U CN 208986075U CN 201822141948 U CN201822141948 U CN 201822141948U CN 208986075 U CN208986075 U CN 208986075U
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- diaphragm
- power battery
- substrate layer
- ternary power
- painting cloth
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of painting cloth diaphragms for nickelic ternary power battery, belong to new material technology field, including plastic core, diaphragm is wound in plastic core, diaphragm includes substrate layer and covers the liquid-adsorption layer for being coated in substrate layer two sides, substrate layer is that PET non-woven fabrics is substrate layer, and two sides liquid-adsorption layer is nano oxidized aluminized coating or nanometer titanium dioxide silicon coating.The utility model, PET nonwoven cloth diaphragm high temperature resistant can reach 200 DEG C, heatproof is higher, secondary rewinding and every volume independent vacuum packing method are vacuumized by heating, diaphragm moisture content and residual solvent levels can be made to be reduced within 0.01%, ensuring will not be because moisture content and residual solvent levels be excessively high in ternary power battery use process, to cause the security risk of battery, pass through secondary rewinding process, secondary check can be carried out to every a roll of diaphragm, ensure diaphragm without scuffing, inviolateness, without perforation, can further improve the reliability of diaphragm quality.
Description
Technical field
The utility model relates to a kind of adhesive tape, more particularly to a kind of painting cloth diaphragm for nickelic ternary power battery,
Belong to tape technology field.
Background technique
With the adjustment of national new-energy automobile subsidy policy, the higher new-energy automobile of course continuation mileage obtains the subsidy amount of money
Also higher, than relatively high ternary power battery, the portion in new-energy automobile is also continuously improved energy density, especially
It is to become coming years power battery development trend with 811 to represent nickelic ternary power battery, as nickel element is in ternary material
The promotion of ratio in material, the stability of power battery interior also will be greatly reduced, and certain safety is brought to power battery
Hidden danger, this is also more harsh to the material performance requirement of power battery interior, diaphragm as power battery interior usable floor area most
A kind of big material plays the role of extremely key to the safety of power battery, in order to adapt to nickelic ternary power battery
It is required that our company research staff develops a kind of low aqueous vapor, low solvent residue, high temperature resistant, suitable for nickelic ternary power battery
Rubbing method diaphragm.
Utility model content
The main purpose of the utility model is to provide for a kind of painting cloth diaphragm for nickelic ternary power battery, PET
Non-woven fabrics is that substrate high temperature resistant reaches 200 DEG C, vacuumizes secondary rewinding and every volume independent vacuum packing method, diaphragm by heating
Moisture content and residual solvent levels are reduced within 0.1%, it can be ensured that in ternary power battery use process will not because of moisture content and
The excessively high security risk to cause battery of residual solvent levels.
The purpose of this utility model can reach by using following technical solution:
A kind of painting cloth diaphragm for nickelic ternary power battery, including plastic core are wound in the plastic core
Diaphragm, the diaphragm include substrate layer and cover the imbibition coating for being coated in the substrate layer two sides, and the substrate layer is PET nonwoven
Cloth is substrate layer, and the imbibition coating is nano oxidized aluminized coating or nanometer titanium dioxide silicon coating.
Preferably, the imbibition coating outermost is coated with 1 μm -2 μm of PVDF coating.
Preferably, it is substrate layer that the substrate layer, which is with 6 μm -15 μm of PET non-woven fabrics,.
Preferably, the nano oxidized aluminized coating or 2 μm -7 μm of nano silica that the liquid-adsorption layer is 2 μm -7 μm apply
Layer.
Preferably, the plastic core and the diaphragm vacuum-packing are in packaging bag.
Preferably, the secondary rewinding of the diaphragm is in the plastic core.
The advantageous effects of the utility model:
1, a kind of painting cloth diaphragm for nickelic ternary power battery provided by the utility model, PET nonwoven cloth diaphragm are resistance to
High temperature length reaches 200 DEG C, and heatproof is higher, and often PE or PP diaphragm heatproof can only achieve 120 DEG C.
2, a kind of painting cloth diaphragm for nickelic ternary power battery provided by the utility model vacuumizes two by heating
Secondary rewinding and every volume independent vacuum packing method, can be such that diaphragm moisture content and residual solvent levels is reduced within 0.1%, residual
Solvent and moisture content are lower, it can be ensured that will not be excessively high because of moisture content and residual solvent levels in ternary power battery use process, from
And cause the security risk of battery.
3, a kind of painting cloth diaphragm for nickelic ternary power battery provided by the utility model, passes through secondary rewinderman
Skill can carry out secondary check to every a roll of diaphragm, it is ensured that diaphragm without scuffing, inviolateness, without perforation, can further improve diaphragm
The reliability of quality.
Detailed description of the invention
Fig. 1 is according to the preferred embodiment 1 of the painting cloth diaphragm for nickelic ternary power battery of the utility model and in fact
Apply the overall structure figure of example 2.
Fig. 2 be according to the utility model for the painting cloth diaphragm of nickelic ternary power battery preferred embodiment 1 every
The schematic cross-sectional view of film.
Fig. 3 be according to the utility model for the painting cloth diaphragm of nickelic ternary power battery preferred embodiment 2 every
The schematic cross-sectional view of film.
Such as figure: 1- plastic core, 2- diaphragm, 21- substrate layer, 22- film layer, 23-PVDF coating.
Specific embodiment
To make the more clear and clear the technical solution of the utility model of those skilled in the art, below with reference to embodiment and
Attached drawing is described in further detail the utility model, and however, the embodiments of the present invention are not limited thereto.
Embodiment 1:
As depicted in figs. 1 and 2, the painting cloth diaphragm provided in this embodiment for nickelic ternary power battery, including plastics
Inner core 1, is wound with diaphragm 2 in plastic core 1, and diaphragm 2 includes substrate layer 21 and covers the liquid-adsorption layer for being coated in 21 two sides of substrate layer
22, substrate layer 21 is that PET non-woven fabrics is substrate layer, and liquid-adsorption layer 22 is nano oxidized aluminized coating or nanometer titanium dioxide silicon coating.
In the present embodiment, as depicted in figs. 1 and 2, substrate layer 21 and liquid-adsorption layer 22 are coated into after diaphragm 2 again with conventional point
Machine slitting is at client's specified width, which width, after the completion of slitting, then monovolume rubbing method diaphragm 2 heats and is vacuumized small with a kind of band
Type rewinding machine, again rewinding one time since small-sized rewinding machine has the function of heating and vacuumizing, while can add online inspection
It tests, the solvent and moisture content residual in coating process and in environment can be greatly reduced, while examining to 2 surface of every a roll of diaphragm
Test, it is ensured that diaphragm 2 without scuffing, inviolateness, without perforation, after the completion of rewinding, then independent vacuum packaging is carried out to every a roll of diaphragm 2,
Ensure that every a roll of diaphragm 2 all realizes that zero-fault is dispatched from the factory.
In the present embodiment, as shown in Fig. 2, it is substrate layer that substrate layer 21, which is with 7 μm of PET non-woven fabrics,.
In the present embodiment, as shown in Fig. 2, liquid-adsorption layer 22 is 4 μm of nano oxidized aluminized coating or 4 μm of nanometer titanium dioxide
Silicon coating.
In the present embodiment, as shown in Fig. 2, plastic core 1 and diaphragm 2 are vacuum-packed in packaging bag.
In the present embodiment, as shown in Fig. 2, 2 two rewinding of diaphragm are in plastic core 1.
Embodiment 2:
As shown in Figure 1, Figure 2 and shown in Fig. 3,1.5 μm are coated on the outside of liquid-adsorption layer 22 compared to 1 the present embodiment of embodiment
PVDF coating 23, painting cloth diaphragm for nickelic ternary power battery provided in this embodiment compared to embodiment 1 have good
Chemical resistance, processability and antifatigue and creep properties, but the coating provided in this embodiment for nickelic ternary power battery
Diaphragm manufacturing cost is high.
In conclusion the painting cloth diaphragm for nickelic ternary power battery that as above embodiment 1 is provided with embodiment 2, PET
Non-woven fabrics is that 2 high temperature resistance and long of diaphragm of substrate 21 reaches 200 DEG C, and heatproof is higher, and often PE or PP diaphragm heatproof can only achieve 120
DEG C, secondary rewinding and every volume independent vacuum packing method are vacuumized by heating, 2 moisture content of diaphragm and residual solvent levels can be made
Be reduced within 0.1%, residual solvent and moisture content are lower, it can be ensured that in ternary power battery use process will not because of moisture content and
Residual solvent levels are excessively high, to cause the security risk of battery, by secondary rewinding process, can to every a roll of diaphragm 2 into
Row secondary check, it is ensured that diaphragm 2 without scuffing, inviolateness, without perforation, can further improve the reliability of 2 mass of diaphragm.
The above, only the utility model further embodiment, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art is according to the present utility model in range disclosed in the utility model
Technical solution and its design are subject to equivalent substitution or change, belong to the protection scope of the utility model.
Claims (6)
1. a kind of painting cloth diaphragm for nickelic ternary power battery, including plastic core (1), twined on the plastic core (1)
It is wound with diaphragm (2), which is characterized in that the diaphragm (2) includes substrate layer (21) and covers and be coated in the substrate layer (21) two sides
Liquid-adsorption layer (22), it is substrate layer that the substrate layer (21), which is PET non-woven fabrics, the liquid-adsorption layer (22) be nano oxidized aluminized coating
Or nanometer titanium dioxide silicon coating.
2. a kind of painting cloth diaphragm for nickelic ternary power battery as described in claim 1, which is characterized in that the imbibition
1 μm -2 μm of PVDF coating (23) is coated on the outside of layer (22).
3. a kind of painting cloth diaphragm for nickelic ternary power battery as described in claim 1, which is characterized in that the substrate
It is substrate layer that layer (21), which is with 6 μm -15 μm of PET non-woven fabrics,.
4. a kind of painting cloth diaphragm for nickelic ternary power battery as described in claim 1, which is characterized in that the imbibition
Layer (22) is 2 μm -7 μm of nano oxidized aluminized coating or 2 μm -7 μm of nanometer titanium dioxide silicon coating.
5. a kind of painting cloth diaphragm for nickelic ternary power battery as described in claim 1, which is characterized in that the plastics
Inner core (1) and the diaphragm (2) are vacuum-packed in packaging bag.
6. a kind of painting cloth diaphragm for nickelic ternary power battery as described in claim 1, which is characterized in that the diaphragm
(2) secondary rewinding is on the plastic core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141948.5U CN208986075U (en) | 2018-12-20 | 2018-12-20 | A kind of painting cloth diaphragm for nickelic ternary power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141948.5U CN208986075U (en) | 2018-12-20 | 2018-12-20 | A kind of painting cloth diaphragm for nickelic ternary power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208986075U true CN208986075U (en) | 2019-06-14 |
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ID=66792318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822141948.5U Active CN208986075U (en) | 2018-12-20 | 2018-12-20 | A kind of painting cloth diaphragm for nickelic ternary power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208986075U (en) |
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2018
- 2018-12-20 CN CN201822141948.5U patent/CN208986075U/en active Active
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